HRG ground fault detector and method using phase inputs to generate a simulated neutral voltage
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 5, 2016
Grant Date -
Apr 2, 2015
app pub date -
Oct 1, 2013
filing date -
Oct 1, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A HRG ground fault detector and method for detecting a ground fault in a High Resistance Ground (HRG) system are provided. The HRG ground fault detector in one example embodiment includes a first input A coupled to a first phase PHA of the HRG system, a second input B coupled to a second phase PHB, and a third input C coupled to a third phase PHC, with the HRG ground fault detector generating a simulated neutral voltage VN′ from the first phase PHA, the second phase PHB, and the third phase PHC. The simulated neutral voltage VN′ has a zero voltage potential when the first phase PHA, the second phase PHB, and the third phase PHC are equal. The HRG ground fault detector further compares the simulated neutral voltage VN′ to a predetermined fault voltage threshold, and detects a HRG ground fault if the simulated neutral voltage VN′ exceeds the threshold.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully